[MasonP95]

So I just installed a CP as I’m getting ready for BM3 and as I was doing test to make sure it’s in and on properly I noticed hissing and lots of turbo sounds. So I figured try sports mode plus to get higher rpms and I feel a bit of a shake not sure where but most likely CP then I figured might aswell give it a pull to see if it’s safely in there and got a warning of drivetrain malfunction any ideas on what I may have messed up on the CP is still intact. I did tighten the screws for if I was to use meth injection

[weehe126]

Did you put the O ring on it? Mess up the sensor at all?

[MasonP95]

Originally Posted by weehe126

Did you put the O ring on it? Mess up the sensor at all?

CTS did give me new o rings but I removed them to put on the old ones but I may have put the bottom one ( connects to IC) on incorrectly would that cause the shaking and hissing? I was having trouble with getting it to sit in place since the O ring seemed just slightly larger

[MasonP95]

And no the sensor seems fine not loose at all I was thinking maybe the vacuum line but that seemed on tight aswell

[alohasurftoad]

more than likely it is your o-ring. its of utmost importance that it is oriented correctly, seated properly and it's not twisted or distorted.

https://f30.bimmerpost.com/forums/sh...+o-ring&page=3

https://f30.bimmerpost.com/forums/sh...2&postcount=38

[MasonP95]

Originally Posted by alohasurftoad

more than likely it is your o-ring. its of utmost importance that it is oriented correctly, seated properly and it's not twisted or distorted.

https://f30.bimmerpost.com/forums/sh...+o-ring&page=3

https://f30.bimmerpost.com/forums/sh...2&postcount=38

Thanks for linking those threads I do think I put it in backwards guess I’ll have a look when there is some sunlight

[DrBall]

i did the same thing when installing the IC connection... flipped the ring around and problem solved! easy fix

[MasonP95]

Originally Posted by DrBall

i did the same thing when installing the IC connection... flipped the ring around and problem solved! easy fix

Let’s hope it’s that while I’m under there I’m also going to see if the clamps need to be adjusted and tightened more

[MasonP95]

So I flipped the O ring and couldn’t get the CP to connect properly on the IC so I had to pull it out of the silicone sleeve a bit and now the pipes don’t touch not sure I had it in before to where there was a very little gap. Initial test drive and noticed a flapping sound when Stopping. Tighten clamps again to make sure it’s on super tight now no sound but it was a little test drive. Any words of advice on if I notice the sound again?